[Honda_KiLlEr660R]

I was thinking of changing the sprockets on my 05 Raptor and I was wondering what the best setup for front and rear would be for drag, and vicaversa for trails?

 

[pewterpecker]

I think a popular setup for all around use is the 12 front and stock rear.

 

[danos660r]

12 i nthe front would loose top speed. Id go for a 14 in thte front, makes your gears a little longer and less shifting. The motor is pleanty powerful to pull a 14, esp with mods. 12 tooth is ok to lug around in the woods

 

[rt]

go 13 tooth (especially for your set up) if you don't like changing you sprocket all the time. It'll give you the best of both trail riding and drag racing w/the stock rear.
I have about 6 different sprockets between the front and rear, I like changing them out depending on where I ride. Unless your running 22" tires in the rear, Don't get the 12 tooth.

I recommend experimenting with the 14 tooth and see how you like it.

 

[danos660r]

rt....have you run the 14 tooth and stock rear? how do you like it? I feel like I top out in 5th and still have more power on tap. Does the bike still accell like hell with the 14? I dont want to kill my bottom end too much.

 

[rt]

For my 660- I like to run my 14 primarily where the terrain is open, or on long trails (that aren't curved). I sometimes run my 22's with it when I want a little more clearance in the rocky trails. It has a real good punch in the midrange but wheres off quickly after 4th gear. I've done my own experimenting and found that I run best acc. times with a 13-39, 20 inch rears. I can top out a little quicker in 5th gear with the 13 than with the 14, but with the 14 I have higher top speed, just a little longer to get there. Another issue that could be addressed is the weight on the quad, I weigh about 190-200lbs. I have about 25lbs more of aftermarket armor on my pig to add..nerfs, bumper, skids,..ect.. If your quad has no armor, and you're a lighter rider..lets say 160-170, you just shed about 50-60 lbs off the bike. that would be a better power to weight ratio. Could be enough to effect how you gear your bike.

To answer your question directly, a 14 tooth will do you good, go another size bigger (15 or 16) and with out engine work the bike will accelerate like a riding lawn mower.....well almost!

everthing I wrote is assuming that you have at least a pipe..jetted..filter..ect

 

[danos660r]

thanks, yeah, im running pipe, 0 lid, high comp, and ported head...i didnt think about dropping a tooth in the rear...

 

[rt]

no prob... someone else put a website up for figuring your gearing, I'm not taking credit for it but this is what was posted, if you haven't already been here, check it out. Before this chart I figured the gearing out with a calc.
http://www.jandjcreativedesign.com/sprocket.php

 

[codyhcahoon]

on my mostly stock raptor i had a 14 tooth on the front when i bought the quad but after riding it around my house and racing with some of my friends i thought that i wanted to gear it down b/c they were keeping up off the line a little even though i have a much larger atv. i didnt want to loose all of my top speed b/c i like to drive down gravel roads so i went 13 in the front and 33 in the back i still have a good top speed of like 70 75 with the few mods i have but the difference in bottom end torque it amazing

 

[rt]

can't be a 33 tooth out back.